AMD Radeon HD 6490 vs NVIDIA GeForce GTX 1080

VS

AMD Radeon HD 6490

NVIDIA GeForce GTX 1080

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6490 and 8GB VRAM GeForce GTX 1080 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490 's Advantages

Lower TDP (39W vs 180W)

NVIDIA GeForce GTX 1080 's Advantages

Released 4 years and 10 months late

Boost Clock1733MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (320.3GB/s vs 16.00GB/s)

2240 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490

0.352 TFLOPS

GeForce GTX 1080 +2420%

8.873 TFLOPS

Radeon HD 6490

VS

GeForce GTX 1080

Graphics Card

Jul 2011

Release Date

May 2016

Northern Islands

Generation

GeForce 10

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1607 MHz

-

Boost Clock

1733 MHz

500 MHz

Memory Clock

1251 MHz

Memory

1024MB

Memory Size

8GB

DDR2

Memory Type

GDDR5X

128bit

Memory Bus

256bit

16.00GB/s

Bandwidth

320.3GB/s

Render Config

4

Compute Units

-

SM Count

20

320

Shading Units

2560

16

TMUs

160

8

ROPs

64

-

8 KB (per CU)

L1 Cache

48 KB (per SM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

110.9 GPixel/s

8.800 GTexel/s

Texture Rate

277.3 GTexel/s

-

FP16 (half)

138.6 GFLOPS

352.0 GFLOPS

FP32 (float)

8.873 TFLOPS

-

FP64 (double)

277.3 GFLOPS

Board Design

39W

TDP

180W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

None

Power Connectors

1x 8-pin

Graphics Processor

Redwood

GPU Name

GP104

Redwood LE

GPU Variant

GP104-400-A1

TeraScale 2

Architecture

Pascal

TSMC

Foundry

TSMC

40 nm

Process Size

16 nm

0.627 billion

Transistors

7.2 billion

104 mm²

Die Size

314 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_1)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

6.1

5.0

Shader Model

6.4

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